Date:         Wed, 20 May 1998 09:45:10 +0100
Reply-To:     David Yeates <david.yeates@health-care-epidemiology.oxford.ac.uk>
Sender:       "SAS(r) Discussion" <SAS-L@UGA.CC.UGA.EDU>
From:         David Yeates <david.yeates@HEALTH-CARE-EPIDEMIOLOGY.OXFORD.AC.UK>
Subject:      Re: cumulative sum
Comments: To: lhinner <lhinner@GWDG.DE>
Content-Type: text/plain; charset="iso-8859-1"

Patrick,
 
The SAS code to create the cumulative sum of variable x could look like...
 
  data <dataset>;
    retain cum_x 0;
    cum_x + x;
    <other SAS code>
  run;
 
Hope this helps
 
David
--
UHCE, Oxford University
mailto:david.yeates@uhce.ox.ac.uk
http://www.views-uk.demon.co.uk/
 
Ludger Hinners:
>Has anybody tried (and succeeded...), say for a variable x with a series
>of observations,  to create a new variable cum_x containing the
>cumulative sum of x (current value plus all previous values)??? i..e, if
>x has the values 2, 0, 5, 3 than cum_x would have the values 2, 2, 7,
>10. Any ideas what a relevant sascode could look like?
>Many thanks
>
>Patrick Verissimo
>
>pveriss@gwdg.de
>